CREST Science Olympiad Class 9 Previous Year Paper

Preparing for the Class 9 Science Olympiad can feel challenging, but using previous year question papers makes a big difference. These papers give students a solid understanding of how questions are framed and what topics to focus on, making revision more targeted.

How These Papers Help

• They cover crucial topics such as Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound etc.
• They improve time management, analytical thinking, and help students handle tricky questions more confidently.
• Answer keys are included to help students review and strengthen weak areas.

Download the Science Olympiad Previous Year Paper for Class 9 (PDF) to support focused revision and help your child step into the exam feeling well-prepared and motivated.

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Syllabus:

Section 1: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of Atom, Cell - The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall Ill, Natural Resources, Improvement in Food Resources.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Sample Paper Previous Year Paper Marking Scheme Free Study Material

Previous Year Questions

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	Fill in the blank: The change in density/pressure of a medium from a maximum value to a minimum value and again to the maximum value, due to the propagation of a longitudinal wave is called a complete __________________.
	a) oscillation		b) frequency
	c) amplitude		d) none of these

Q.2	Which of the following is the main difference between onion peel cells and human cheek cells?
	a) Presence of mitochondria in onion peel cells only.		b) Presence of cell wall in onion peel cells only.
	c) Absence of plasma membrane in human cheek cells.		d) Absence of endoplasmic reticulum in human cheek cells.

Q.3	What is the function of chloroplast in plants?
	a) To absorb carbon dioxide during photo synthesis.		b) To break up water into hydrogen and oxygen during photosynthesis.
	c) To synthesise food in the presence of sunlight.		d) To form carbon dioxide and glucose in sunlight.

Q.4	Consider the following statements and choose the correct option: Statement 1: The number of molecules present in 2.8 g of nitrogen is 6.023 x 1022. Statement 2: Both 44 g CO2 and 16 g CH4 have the same number of carbon atoms.
	a) Statement 1 is correct and statement 2 is incorrect		b) Statement 1 is incorrect and statement 2 is correct
	c) Both the statements are correct		d) Both the statements are incorrect

Q.5	Which one of the following graphs represents uniform motion?
	a)		b)
	c)		d)

Q.6	Choose the wrong statement:
	a) The accelerated motion may be due to change in the magnitude of velocity or direction of velocity or both.		b) The velocity and acceleration of a body may not necessarily be in the same direction.
	c) The velocity and acceleration of a body may not be zero simultaneously.		d) When a body falls freely under the action of gravity, its acceleration is zero.

Q.7	Read the following statements and choose the correct option: Statement 1: The presence of circulatory system is not the characteristic feature of protochordata. Statement 2: Rhizopus is the common 'black bread mould' fungus.
	a) Statement 1 is correct and statement 2 is incorrect		b) Statement 1 is incorrect and statement 2 is correct
	c) Both the statements are correct		d) Both the statements are incorrect

Q.8	Consider the following statements and choose the correct option: Only liquid phase is present after mixing a teaspoon of solid sugar in a glass of liquid water. A saturated solution can be converted into unsaturated by increasing temperature. Clouds are an example of solid in gas solution.
	a) Only 1 is correct		b) Only 2 is correct
	c) Only 1 and 2 are correct		d) 1, 2 and 3 are correct

Q.9	In the following question, an assertion and a reason is given. Choose the correct option: Assertion: AIDS is not syndrome which results from infection through bacteria. Reason: AIDS is not transmitted through contact with saliva, breast milk and vaginal secretions of an infected individual.
	a) Both assertion and reason are true and reason is the correct explanation of assertion.		b) Both assertion and reason are true and reason is not the correct explanation of assertion.
	c) Assertion is true but reason is false.		d) Both assertion and reason are false.

Q.10	The distance between 2nd crest and 6th trough of a wave shown below is 24 cm. If the wave velocity of the moving crests is 20 m s-1, then the frequency of rocking of the boat is:
	a) 24 Hz		b) 20 Hz
	c) 375 Hz		d) 240 Hz

Your Score: 0/10

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 9 -

1. CREST Science Worksheets Package for class 9 - It is a package of 5 worksheets. The worksheets are in the same pattern as the previous year paper. Hence, very useful for preparation. Existing users can purchase additional practice worksheets by following these steps: Login at https://www.crestolympiads.com/login -> Dashboard -> Additional Practice -> Buy & new users can visit https://www.crestolympiads.com/registration
2. CREST Science Olympiad book for class 9 - The book covers topic-wise reading material, chapter-wise practice questions with answer key & contains the previous year paper. The book is available in both physical and pdf formats. Proceed now to purchase the Olympiad book. Also, students can view & download the first chapter of the Science Olympiad book for class 9 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 9.